A system for the rapid characterization of multi-analyte fluids, in one embodiment, includes a light source, a sensor array, and a detector. The sensor array is formed from a supporting member into which a plurality of cavities may be formed. A series of chemically sensitive particles are, in one embodiment...http://www.google.de/patents/US6602702?utm_source=gb-gplus-sharePatent US6602702 - Detection system based on an analyte reactive particle